According to numerous students of Shatner’s toupee, who examine the issue closely, the most fascinating hairpieces Shatner ever wore were the ones in the 1970s, when he appeared on game shows, such as the Match Game in 1975 (above), and his appearance on the New Beat the Clock (below, 1974).
Another contender would be the “furry” piece worn in the early 1980s for TJ Hooker:
All of them are from the smaller publisher, DAW, who I’d argue, had the best covers in scifi history. The smaller the publisher, the better the covers. Cover art is something of a lost art these days because of the disinterest of the larger publishers in investing into their books.